Situation: A small company decide to remove their ADFS service from the domain because they use Office 365 only and Office 365 provides password hashes that handles the user authentication.
Resolution: To disable ADFS service or make the domain from Federated to standard, please run these powershell commands:
Connect-MsolService
Get-MsolDomain
Convert-MsolDomainToStandard -DomainName
Here DomainName is your company domain. For Chicagotech.net the command will be
Convert-MsolDomainToStandard -Chicagotech.net